Weft stop-motion for wire-looms.



PATENTED JULY 28, 1908. F. L. TRUDBAU. Y WEFT STOP MOTION FOR WIRE LOOMS.

APPLICATION FILED JUNE 27, 1907.

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UNITED STATES PATENT OFFICE.

FRANK L. TRUDEAU, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO WRIGHT WIRE COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

WEFT STOP-MOTION FOR WIRE-LOOMS.

Specification of Letters Patent.

Patented July 28, 1908.

To all whom it may concern:

Be it known that I, FRANK L. TRUDEAU, a citizen of the United States, residing at lVorcester, in the county of INorcester and State of Massachusetts, have invented a new and useful Weft Stop-Motion for Wire-Looms, of which the following is a specification.

This invention, while not strictly limited to looms for weaving wire fabrics, is more especially designed for application thereto and will be described with special reference to such a loom.

The principal object of the invention is to provide a simple and inexpensive means for automatically stopping the loom when for any reason the weft strands do not appear at the proper place in the fabric.

Reference is to be had to the accompanying drawings which illustrate a preferred form of the invention and in which,

Figure 1 is a plan of a portion of a wire loom showing how the invention may be applied thereto, and Fig. 2 is an elevation of the same showing the parts in two positions in full and dotted lines.

The invention is illustrated as applied to a loom for weaving wire fabrics which is provided with a frame 10 supporting a to rail 11 having a selvage finger 12 supported by a selvage finger box 13 and provided with a shipper rod 14 operated by a shipper lever 15. This shipper lever is connected with a clutch rod 16 and is controlled by a catch 17 which in turn is controlled by a swinging catch 18, all being of a well-known construction. The loom is, of course, provided with a lay 19 having reeds 20. It will be understood that this form of loom is selected for illustrative purposes only and that the invention may be applied to looms of other types.

In order to accomplish the objects of this invention in a simple and inexpensive manner, the swinging catch 18 is provided with a link 21 consisting of two rods which are connected by a turn buckle 22 so that the length of the link may be adjusted. This link is pivoted to the catch 18 and to a lever 23 which is pivoted on abracket 24 supported by the frame. This lever extends from the side of the frame into a position under the fabric and is provided with an arm 24 at an angle thereto which has a finger 25 thereon adapted to project up under the fabric and engage the weft strands thereof. This arm is of such length that the finger engages one or two of the last woven weft strands.

A spring 26 is connected with the lever and with a bracket 27 on the frame in such a man ner as normally to hold the arm 24 up in such position that the finger 25 presses against the under side of the fabric and when for any reason the weft strands are absent, the finger will swing up through the fabric as indicated in dotted lines in Fig. 2. When in this position, the lever 23 is moved upwardly far enough to permit a bunter 28, with which the lay is provided, to engage the lever when the lay moves tobeat up the weft. This swings the lever on its pivot and through the link 21 pulls the catch 18 so as to permit the shipper rod to move back and stop the ma chine. The mechanism by means of which the shipper rod stops the machine is not illustrated as that may be of any ordinary kind or character and is well understood in the art.

By the construction of a weft stop motion, according to the principle indicated above, it will be seen that a most simple and inexpensive arrangement is secured for accomplishing this result and one which has few parts, none of which are liable to get out of order in ordinary operation. Moreover, the device is adjustable so that it can be made to operate under any conditions of use.

While I have illustrated and described a particular form in which I prefer to embody the invention, I am aware that many modifications may be made therein by any person skilled in the art and that it may be changed to accommodate it to different types of loom without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to the particular form shown, but

What I do claim is 1. In a wire weaving loom, the combination with the frame, of a swinging shipper catch thereon, a link pivotally connected with said shipper catch, a lever pivoted to the frame and connected with said link, said lever having on one end thereof a finger adapted to engage the weft strands when they are woven into the fabric, means for holding the finger against said weft strands and moving it through the fabric when the weft strands are absent therefrom, and a bunter on the lay of the loom located in such position as to miss said lever on each beat of the lay when the finger is in engagement with the fabric and to engage the same when the finger has passed through the fabric, whereby the bunter will move the lever in the latter case so as to swing the shipper-catch bymeans of said link.

2. A weft stop motion for looms, compris- -ing a shipper rod catch, a link connected therewith, a lever with which the link is connected, a finger connected with said lever and adapted to bear on the under side of the fabric, a bunter on the lay of the loom located in such position as to pass over the lever when the finger is in engagement with the under side of the fabric, and means for moving the lever into the path of the bunter when the finger does not bear on the fabric, whereby the bunter will move the lever to swing the catch out ofoperative position.

3. In a wire loom, the combination with a frame of a shipper catch, an adjustable link pivoted thereto, a lever to which said link is pivoted, said lever being pivoted to the frame and extending under the fabric woven on the loom, said leverhaving an arm prointo the path of the bunter when the finger moves upwardly through the fabric, whereby the lever may be swung by the movement of the bunter to draw said catch from operative position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

FRANK L. TRUDEAU. Witnesses:

J. ELMER HALL, ALBERT E. FAY. 

